UNRWA provides assistance and protection for some 5.5 million registered Palestine refugees.
Switzerland said on Friday it had resumed aids to the United Nations Relief and Works Agency for Palestine Refugees in the Near East (UNRWA), the New Arab news site has reported.
Switzerland was among a number of countries that suspended their contributions to UNRWA earlier this year amid allegations that the Agency had misused donor funds.
The Swiss foreign ministry told AFP in an email on Friday that Guterres had confirmed in a letter sent to Bern on December 3 that "the probe uncovered no evidence of misappropriation of funds".
The ministry also highlighted reforms put in place by UNRWA to better manage donor funds.
Taking into account the measures taken and the confirmation from the UN Secretary-General that no donor funds had been misappropriated, Switzerland has decided to resume its payments to UNRWA, it said.
In early November, UN Secretary General Antonio Guterres released a statement saying the preliminary findings of an internal UN probe found no "fraud or misappropriation of operational funds" by Krahenbuhl.
"There are, however, managerial issues that need to be addressed," his statement said.
Before halting its payments to the agency, Switzerland had already dished out 25 million Swiss francs ($25.4 million, 23 million euros) in 2019. In 2018, the wealthy Alpine nation provided the organization with funds of 26 million francs.